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CVE-2023-50721

Xwiki remote code execution

9.9 CRITICALEPSS 78.8%
  1. Published15 Dec 2023

Description

XWiki Platform is a generic wiki platform. Starting in 4.5-rc-1 and prior to versions 14.10.15, 15.5.2, and 15.7-rc-1, the search administration interface doesn't properly escape the id and label of search user interface extensions, allowing the injection of XWiki syntax containing script macros including Groovy macros that allow remote code execution, impacting the confidentiality, integrity and availability of the whole XWiki instance. This attack can be executed by any user who can edit some wiki page like the user's profile (editable by default) as user interface extensions that will be displayed in the search administration can be added on any document by any user. The necessary escaping has been added in XWiki 14.10.15, 15.5.2 and 15.7RC1. As a workaround, the patch can be applied manually applied to the page `XWiki.SearchAdmin`.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

Xwiki≥ 15.0 < 15.5.2 · ≥ 4.5 < 14.10.5 · 15.6 · 15.7

Remediation

Fixed in
Xwiki≥ 15.5.2

Frequently asked

Is CVE-2023-50721 being actively exploited?

CVE-2023-50721 is not in the CISA KEV catalog. Its EPSS exploit probability is 78.8%.

How severe is CVE-2023-50721?

CVE-2023-50721 has a CVSS 3.1 base score of 9.9, rated critical. EPSS estimates a 78.8% probability of exploitation.

Which products are affected by CVE-2023-50721?

Affected products include Xwiki.

How do I fix CVE-2023-50721?

Upgrade affected software to a fixed version, for example Xwiki 15.5.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-50721 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.